M8SI is a diaphragm valve for HP & UHP applications. Its springless design keeps the highest level of purity of the gas. The M8SI valve exists in low, medium or high pressure versions. Different actuation are available for purchase : multi-turn or quarter-turn handwheel, and pneumatic actuator. The multi-turn version is delivered with an open-close indicator handwheel. It can be mounted on a panel.
Key advantages
100% Helium Leak Test performed
Assembling, testing & Packaging in cleanroom: Class ISO 4
Reverse seat design for high life cycle
Individual serial number for full traceability
Electropolished surface roughness per SEMI F19 UHP Grade
Fluid specific seat material as standard options
Low internal volume
Additional Multi-port options
270° multiturn handwheel with open/close indicator